Ments



A. HERBERT.

GRAPHOPHONE.

APPLICATION FILED 050.31. I918.

1 ,332,723, Patented Mar. 2, 1920.

2 SHEETSSHEET 1.

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if A TTORNEYS A. HERBERT.

GRAPHOPHONE} APPLICATION man DEC.3I, 1918.

1,332,723. Patented Ma122,1920.

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A? ATTORNEYS UNITED STATES PATENT. OFFICE.

ABlELARDO HERBERT, OF LIMA, PERU, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, OF TWENTY-FIVE ONE-HUNDREDTHS' TO TEODOMIRO DE LOS HEROS Y JACOME AND THIRTY-SEVEN AND ONE-HALF ONE- HUNDREDTHS TO TERESA HANDLEY, BOTH 0F LIMA, PERU.

GRAPHOPHONE.

Specification of Letters Patent.

Patented Mar. 2, 1920.

Application filed December 31, 1918. Serial No. 269,073.

To all whom it may concern:

Be it known that I, ABELARDO HERBERT, of Lima, Peru, have invented certain new and useful Improvements in Graphophones; and I do hereby declare the following to be a full, clear, and exact description of the invention, Such as will enable others skilled in the art to whichit appertains to make and use the same. a

This invention relates to graphophones and particularly to mechanism associated with means for stopping the motor to effect the removal of the record from playing position on the rotating plate.

The object of my invention is the provision of a very simple device which will automatically raise the record above the motor spindle to disenga e the two and allow the disk by the centriiugal action imparted by the rotating plate to be thrown to one side and deposited in a receptacle, the device being actuated in synchronism with the application of the brake to the rotating plate.

In the accompanying drawings, Figure l is a top plan view showing a portion of a graphophone equipped with my device. Fig. 2 is a view in side elevation of the tripping device, a portion of the record with its supporting plate being shown. Fig. 3 is a detailed perspective view of the several ele ments forming the trip mechanism. Fig. L shows in detail the parts forming the latch for the sound box.

For'the purposes of illustrationmy invention is shown applied to a graphophone of known form wherein is included a cabinet A, rotating plate B, swingin tone arm C, and a sound box D supported by a curved neck E. In graphophones of this type the supporting neck E is pivotally secured to the outer end of the tone arm and is adapted to be turned so as-to remove the needle from engagement with the record disk to permit the latter to be lifted from the plate and a different record placed thereon. In the drawings I have shown a mechanism for automatically effecting the raising of the sound box and its needle from the record disk and holding it in such elevated position while the record is being removed. The record disk is provided with a raised inclined por tion 2 which is the terminal of the record groove. It will be seen that as the needle which forms part of alatching device, the

complementary part being in the form of a T-shaped lever 4. The shank ofthis lever is pivoted about midway its length, as at 5, to the tone arm and its branches form a bolt 6 which extends through apertures in keeper plates 8, 9, rigidly secured to the outer end of the tone arm. A coiled spring 10 surrounds a portion of the bolt 6 and is spaced between the shank of the lever and the plate 9 so as to constantly force the bolt into the vertical plane of movement of the arm 3. When the sound box is in working position on the disk the bolt will bear against the face of the arm 3 with the spring 10 under tension. As soon as the needle has reached the end of the record groove and has traveled up the inclined portion 2 the bolt 6 will through the action of the spring 10 be projected so, as to lie in the path of the arm and the latter will be held down with the supporting neck'E slightly raised and the needle out of engagement with the disk. In order that the sound box may be placed in playingposition the lever 4 must be rocked on its pivot to disengage the latching members. This'is readily accomplished by pressure on a thumb piece 12.

In the position of the parts as described,

with the sound box raised and held so by as at 22 to a supporting bracket 23 firmly i attached to the tone arm by a. collar 24:, a spring 25 being connected to the bracket and the finger to control the play of the finger as it engages the plate. The bracket, the brake finger and the tone arm are adapted to swing together. A spring tension device 26,

one end of which is secured to the brake and the other connected with a regulating button 27, is efi'ective to turn the brake and tone arm, the brake into engagement with the rotating disk and the arm into initial position. The tension of this spring device is not sufficient to hamper the inward movement of the sound box over the record.

In the use of my improved device for throwing ofl' the records it is necessary that the record disk be spaced at its periphery a slight distance from the supporting late. For this purpose the plate B is provide with a raised portion 30 which is of less diameter than the records to be supported on the plate, and this raised portion may be an integral part of the plate, or a mat of rubber or other composition may be employed. At one side of the cabinet A, preferably that opposite the point of initial engagement of the soundbox and disk, I provide an arm 31 pivotally secured at one end to upstanding cars 32, its free end being adapted to project into the peripheral space between the record and the plate B. The arm 31 which is constantly urged upward by a spring 33, of any preferred form, is held down against the tension of this spring by a pivoted catch 34 at one side of the arm. To the end of the longer arm 36 of a two arm lever 37, on a vertical pivot 38, is secured one end of a flexible member 39, the other end being connected with the catch 34: ata point slightly higher than the point of connection with the lever. In the normal use of my improved throw-off device, the arm 36 lies across the are described by the brake finger 20 in its movement to stop the rotating plate and in. this position the flexible member 39 is held taut between the catch 34 and the end of the lever arm. If it is desired to repeat a given record the throw-off device may be switched out of operative position by the shorter arm of the lever 37 In operation, the arm 31 is pressed down against the tension of its spring and the catch 34 applied to hold it. A record is then laced on the plate, the lever 37 is turned so that its arm 36 will lie across the are described by the brake finger thereby bringing the flexible member into position to be drawn by the brake finger 20 to trip the catch 34 and release the arm 31. This movement takes place about at the time the tone arm reaches a point where the needle is in vertical line with the edge of the rotating plate and before the brake has been brought to a position, by the swing of the tone arm under the influence of its spring tension device 26, to check the rotation of the plate. As the arm 31 springs upwardly it will raise the record sufliciently high to free it from engagement with the spindle of the motor and the edge of the record diametrically opposite the arm still being in contact with the rotating plate will receive the full force of this rotation and the centrifugal action will throw the record to one side and into contact with a roller 40 at one side of the cabinet,

end at one side of the trip arm serves the I dual function of guiding the record to the roller and of limiting the upward movement of the arm 31.

I claim as my invention:

1. In combination with a graphophone having a rotating plate and a record thereon, a swinging tone arm, a sound box support pivotally mounted at the outer end of said arm, and means for automatically raising and holding said support, brake mechanism actuated by said tone arm, and means actuated by said brake mechanism for automatically removing said record from said rotating plate.

2. In combination with a graphophone having a rotating plate and a record thereon, a swinging tone arm, a sound box support pivotally mounted at the outer end of said arm, and means for automatically raising and holding said support, brake mechanism actuated by said tone arm, and means actuated by said brake mechanism for partially lifting said record from the rotating plate to permit the centrifugal action of the plate to throw the record to one side.

3. In combination with a graphophone having a rotating plate, a record thereon, a swinging tone arm, a sound box support pivotally mounted at the outer end of said arm, and means for automatically raising and holding said support, brake mechanism actuated by said tone arm, a spring actuated trip arm, means for holding said arm retracted, said trip being adapted to engage the record to partially lift it from the rotate ing plate to permit the centrifugal action of the latter to throw the record to one side, and means actuated by said brake mechanism for releasing said trip arm.

4. In combination with a graphophone having a rotating plate, a record thereon, a swinging tone arm, a sound box support pivotally mounted at the outer end of said arm, and means for automatically raising and holding said support, brake mechanism actuated by said tone arm, aspring actuated trip arm, a, latch for holding said arm retracted, said trip being adapted to engage the record to partially lift it from the rotating plate to permit the centrifugal action of the latter to throw the record to one side.

and a connection between said latch and said brake whereby the latch releases said tr1p as the brake mechanism moves to operative position.

5. In combination with a igraphophone having a rotating plate provided with a raised portion, a record thereon, a swinging tone arm, a sound box support pivotally mounted at the outer end of said arm, and means for automatically raising and holding said support, brake mechanism actuated by said tone arm, a spring actuated arm extending between said rotating plate and said record, means for holding said arm retracted, and means for automatically actuating said last mentioned means to release said trip arm to partially lift the record from the rotating plate to permit the centrifugal action of the latter to cause the record to be thrown to one side.

In testimony whereof I have signed this specification.

ABELARDO HERBERT. 

